An error occurred during the backup: gzip -t mintbackup_home.tar.gz --> 256
I heard somewhere it might be from a file space issue, but given my hard drive has over 90gb remaining, it shouldn't occur.
It happened when I backed up both 4gb. And when I tested it excluding all but 4mb or so of the files.
Near the end of the terminal entry there's a prompt asking to overwrite the backed up tar.
Then at the end of the terminal entry is this error:
gzip: mintbackup_home.tar.gz: invalid compressed data--crc error